All Questions
Tagged with capacitive microcontroller
10 questions
3
votes
1
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599
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How can I use a microcontroller to trigger an existing capacitive-touch pad?
(Note: I have found several other questions on a similar topic, but none of them address my specific issue.)
I have a lamp that is controlled by non-contact touch buttons. The user-facing surface is ...
- 1,495
1
vote
4
answers
2k
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How to make fast (low latency) capacitive touch buttons
I'm looking to create low latency capacitive touch buttons for a musical instrument. The response time (from physical touch to touch registered in microcontroller) needs to be around ~2ms or less.
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- 429
1
vote
1
answer
59
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Question Regarding Capacitive Sensor IC
I have this Capacitive Sensor IC
I am trying to understand and analyze how to use this IC.
In the datasheet, on page 13 - Function description, it is mentioned as "There are four selectable non-...
user220456
1
vote
0
answers
134
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Does a Microcontroller act as a Capacitive load or resistive?
I'm designing a unity gain buffer (IC MCP6002) and in the datasheet, it says that a small series resistor is required at the output, if the load is capacitive and is >100pF.
The input of the buffer ...
- 175
0
votes
1
answer
125
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PIC16F1827 Capacitive Touch Sensor not Incrementing Timer?
So I have a PIC16F1827 on a breadboard and was trying to get a simple demo working where I touch a wire to turn on an LED using the Capacitive Sensing Module. I was primarily going off this example I ...
1
vote
1
answer
1k
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Which MCU (Atmel) I can use with QTouch library?
Some MCU have QTouch support - # touch channels implemented as a hardware. Is it true that QTouch library was designed only to work with such MCUs? Can I use it with, for example, 'old' ATmega48? Is ...
- 356
0
votes
1
answer
157
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Feasibility- Flex Capacitive Touchpad
I'm a student(don't know much on Eagle) working on a project where I need a way of multi-touch finger tracking on flexible material. Will flex pcbs work?
- 11
0
votes
1
answer
1k
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QTouch Matrix ATmega8 issues
After trying a lot on QTouch Matrix for ATmega8,It didn't work for me. So sharing the trouble here.
I have taken reference from this beautiful article. Here he had provided a schematic and PCB ...
- 69
1
vote
1
answer
456
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Capacitive touch on off power switch
Is is possible to use capacitive touch as a power switch for an embedded project?
Can a microcontroller turn itself off and somehow still monitor an input pin? Or is there a dedicated IC that can ...
- 21
0
votes
2
answers
2k
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ESD protection of capacitive touch doorknob circuit?
This is a follow-up to my question: How can I use a generic doorknob as a capacitive touch sensor?
I am now ready to move beyond the proof-of-concept stage, but I have not yet learned of a ...
- 2,709